Thanks SE1 Foodie - didn't know about them. Will also see if the Cypriot shop on Southwark Park road might be able to get a couple of sacks/nets in for me ! Think I'm looking for a larger bag than Tesco's usually do but thanks anyway Paul.
I have not been able to find any shallots in the shops for a couple of months at least. We use them a lot in French cooking. Fortunately, I have just returned from France with a great big bag from my parents' garden and it will last me until next spring.